Cart-seat



(N0 Model.)

J- M. LEBl CART SEAT.

Patented UNITED STATES PATENT OFFICE.

JOHN M.V LEE, OF DOUGLAS, ARKANSAS.

CART-SEAT.

SPECIFICATION forming part of Letters Patent No. 411,597, datedSeptember 24, 1889. Application tiled July l, 1889. Serial No. 316,251.(No model.)

T0 @ZZ whom, t may concern.-

Be it known that l, JOHN M. LEE, residing at Douglas, in the county ofLincoln and State of Arkansas, have invented certain new and usefulImprovements in CartSeats, of Whichthe following is a specification.

My invention has for its object to provide a revolving cart-seat whichwill be simple in construction and cheap as to cost; and it con` sistsin certain novel features of construction and combination of parts, allof which will hereinafter be fully described in the annexedspecification and particularly pointed out in the claims, referencebeing had to the accompan ying drawings, in Which- Figure l is atransverse section of my iinproved seat. Fig. 2 is a plan view of aportion of the seat-supporting frame, and Fig. 3 is an inverted planvieW of the seat.

In the drawings, A indicates the seat-supporting frame, and B Jthe seat,upon the under side of which is secured a depending pivotbolt O,provided with lateral flanges or wings c c, through which and theseat-body bolts d d are passed, and their lower ends being provided withnuts CZ c'l,by means of which the pivot-bolt is securely held in placeon' the seatbody. The bolt C passes down through a central aperture E inthe seat-frame, andis held in place by the nut c and janrnut e.

D denotes a Washer disposed on the bolt between the seat and seat-frame,as shown. The washer D is provided with a convened upper surface, uponwhichbears the convexed lower surface l/oi' the bolt-flange, 'and as theweight during revolving is on the Washer and iiange said flange andwasher are constructed of polished iron or steel. By forming the flangeand washer with convened bearingsurfaces the friet-ion is reduced to aminimum.

F denotes a series of metallic bearingplates secured upon the undersideof the seat- B, and which engage and rest upon a cir cular metallictrack G, secured upon the seat-supporing frame A.

H H denote the dependingl notched lugs or stops secured upon theunderside of the seat, as shown, and. I denotes a spring-catch securedupon the supporting-frame, which is adapted to engage With either otsaid lugs in a manner presently described.

The stops l-I H may be secured upon the seat at any Apoint desired. Asshown in the drawings, the stop His arranged at the right side, Whilethe stop H is secured at the center of the rear edge of the seat. Bythis construction it will be seen that by pressing on the thumb-piece iof the spring-catch I, thereby forcing same from engagement with thenotch 7L of the stop H, the seat may be turned te the left, and whensaine is thus turned the stop H will come into engagement With the catchl and hold the seat in turned position. The seat may be turned entirelyaround by turning same to the right.

Vhile I have shown and described my improvement in connection withcart-seats, itis manifest the saine may be used in connection with otherkinds of seats, such as revolving chairs, dre. It will also operate asWell on double as on single seats.

From the foregoing description, taken in connection with the drawings,the operation and advantages of my invention will be clearly understood.It Will be seen that the saine is exceedinglyT simple, and by simplypressing the releasing-catch and pressing with his feet against thebottoni of the cart the occupant can quickly and easily turn the same,and by arranging the Washer and the flanged bolt as described all of theWeight of the occupant during turning will be on said parts.

Having thus described my invention, what I A claim, and desire to secureby Lett-ers Patent,

l. The combination, with the seat-support ing frame provided with acentral vertical aperture, of the seat B, provided with a depending boltheld in said aperture, provided With a flanged head secured to the under'side of the seat, said head provided with a convexed under surface, anda Washer dis'- posed upon the bolt between the seat and seat-frame, andprovided with a convened upper surface engaging the flanged head of thebolt, substantially as and for the purpose described.

2. The combination, with the seat-franie provided With a centralvertical aperture, of the seat B, provided With a dependingpivotboltoperating in said aperture E, said bolt IOO formed with lateralwings or flanges c Yc, adapted to be bolted to the under side of seat B,the central portion of said flanges formed conveXed on their under side,and a nut or Washer disposed on said bolt between the seat andsupporting-frame, provided with an upper convex surface, substantiallyas and for the purpose described 3. The hereinbefore-describedimprovement in cart-seats, consisting of a supporting-frame A, providedWith a central aperture E and a spring-catch I at one side, the seat B,provided with a depending pivot-bolt operating.

in said aperture E, said bolt provided with a flanged head having aconvex bearing-surface on its lower face, depending lugs or stopssecured to said seat, adapted to engage the springlcatch I, and a washerdisposed between the seat and seat-frame, provided with an upperconvexed bearing-surface adapted to engage the flanged bolt-head, allarranged substantially as and for the purpose described.

the seat and supporting-frame, having a convexed bearing-surfaceengaging the flanged head of the bolt, all arranged substantially as andfor the purpose set forth.

JOHN M. LEE.

Witnesses:

F. D. GRANGER, B. L. KINGSLAND.

